Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Integrating analog/digital converter










Image Number 16 for United States Patent #6285310.

An analog/digital converter including an amplifier (1) wired as an integrator, a comparator (2) electrically downstream from the integrator, a time counter (6) which continually counts the pulses of a pulse generator (5), a bistable element (4), and additional circuitry. The bistable element (4) drives the input network of the amplifier (1) with at least one switch (3) in such a way that in one of its two positions ("off" condition) a current I.sub.x proportional to the analog measured value is integrated, and in the other position ("on" condition) a constant reference current I.sub.ref with opposite polarity to the current I.sub.x is integrated in addition to current I.sub.x. The switching of the bistable element from the "off" condition to the "on" condition is controlled by the time counter, and the switching from the "on" condition to the "off" condition (switch-off time) is controlled by the output signal of the comparator, which is generally synchronized with the pulses of the pulse generator. The pulses of the pulse generator (5) are summed to a result during the time the bistable element is in its "on" position. The additional circuitry displaces the switch-off time of the bistable element (4) beyond the time resulting from the above synchronization by a number of pulses of the pulse generator (5) determined by an arithmetic unit (31).








 
 
  Recently Added Patents
Phase locking loop
Modular authoring and visualization of rules using trees
Hardware/software debugging using memory access parameters
Image forming apparatus with an improved density adjustment unit
Apparatus and method for masking a clock signal
Bath
Digital photographing apparatus
  Randomly Featured Patents
Eccentric ball type valve
Transistor with improved safe operating area
Optical mask using phase shift and method of producing the same
Radio frequency identification tag antenna assembly
Apparatus and method for a hot mix asphalt plant using a high percentage of recycled asphalt products
Oil recovery method employing amphoteric surfactants
Method and an apparatus for the integration of IP devices into a HAVi network
Dynamic noise blanker circuit
Method of confirming that a control device complies with a predefined protocol standard
Athletic team flag